[PATCH v7 0/7] MR4045: kernelbase: Rewrite ExpandEnvironmentStringsA to return ansi string size

[Fabian Maurer (＠DarkShadow44)]

We can't return the unicode string size, this returns sizes to small
for multi-byte characters.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54295

--
  v7: kernel32: Rework ExpandEnvironmentStringsA to return ansi size and fix corner cases.
      kernel32: Rework ExpandEnvironmentStringsW error handling.
      ntdll: Rework RtlExpandEnvironmentStrings/_U to account for corner cases.
      kernel32: Add ExpandEnvironmentStringsA tests for japanese.
      kernel32: Add more tests for ExpandEnvironmentStringsA.
      kernel32: Add tests for ExpandEnvironmentStringsW.
      ntdll: Add more tests for RtlExpandEnvironmentStrings/_U.

https://gitlab.winehq.org/wine/wine/-/merge_requests/4045